Assigjtob to



(No Model.) 2 Sheets-Sheet 1.

E. WRIGHT.

MECHANISM FOR OPERATING DUFF-EB. GOMBS 0F GARDING MACHINES.

No. 381,516. Patented Apr. 17,1888

(No Model.) 2 Sheets-Sheet 2.

E. WRIGHT.

MECHANISM FOR OPERATING DOFFBR GOMBS OF GARDING MAGHINES. No. 381,516.Patented Apr. 17, 1888 NZ PETERS. Fhnm'umngnphor, Wax-Human. CLQ

UNITED STATES.

PATENT @rrrcri.

ELUAH \VRIGHT, OF NORTH ANDOVEB, MASSACHUSETTS, ASSIGNOR TO THE DAVIS 85FURBER MACHINE COMPANY, OF SAME PLACE.

MECHANISM FOR OPERATING DOFFER-COMBS F CARD|NG-MACH1NES.

SPECIFICATION forming part of Letters Patent No. 381,516, dated April17, 1888.

Application filed January 3, 188?. Serial No. 2232B. (No model.)

T0 aZZ whom, it? may concern:

Be it known that I, ELIJAH WRIGHT, of North Andover, county of Essex,and State of Massachusetts, have invented an Improvement in Mechanismfor Operating Do'ffer- Combs of carding-Engines, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like letters on the drawings representing like parts.

This invention has for its object to improve the construction ofmechanism for operating dotler-combs, whereby they may be run rapidlyand without jar or noise, the mechanism being also simple and durable.

l have provided means whereby a greater or less extent of movement maybe given to the comb in a rapid and eilicient manner.

Figure 1 in plan view represents my improved mechanism for operatingdot'fer-combs, the comb-shaft and comb being broken out centrally tosave space upon the drawings. Fig. 2 is a section of Fig. 1 inthe linea: as. Fig. 2" shows one of the bearings removed. Fig. 3 is a sectionaldetail ofFig. l in the line w, and Fig. etis asection of Fig. 3 intheline The shoes A B will in practice be securely attached or bolted tothe side frames of the carding-machine. The shoe A is shown as having arecess, as a, for the reception of the bolt to enter the side frame.

The stand A, herein shown as a hollow case for the reception of oil, ispivoted upon coni cal-pointed adj Listing-screws a c, extended throughears of the shoe and entering conical recesses in lugs a a" of the case,the pointed screws permitting the case to rock in order that it mayadjustitself to the combshaft O, the bearings c for the said comb-shaftnear one end forming a part of the stand A. The stand A also hasattached to it a bearing-hub, A which receives in it a shaft, 1), theouter end of which has attached to it a belt-pulley, D, through whichthe combshaft is driven, the said shaft D having its hearings in the hubA the inner end of the shaft D being enlarged or provided with a head,as D The head D is provided with one or more holes, as (1, located atdifferent distances from the center of the said head and of the shaft D,one of the said holes receiving loosely the stem 6 of a sleeve, e, thesaid sleeve in turn receiving in it an arm, 6, preferably made hollowand extended from a hub, e, which is split and provided with cars toreceive a set-screw, e*, whereby the said hub is securely but adjustablyattached to the comb-shaft G. The arm e will preferably be provided withholes, as 2 and 3, for the passage of oil between the said arm and thesleeve 6'. The shank e is also provided with an oil-passage, as 4-, andthe hub with an oiLpass-age, as 5.

By the employment of two or more holes, as d, located at differentdistances from the center of rotation of the head D it is possible tochange the position of the shank c with relation to the center ofrotation of the head D, thus giving a greater or less extent of movementto the comb 0 attached to the combshaft in any usual manner.

The arm 6 is provided with an annular groove, as 7, (see Figs. 3 and 4,)so located therein with relation to the movement of the sleeve 0 thatthe upper end of the said sleeve in its upstroke passes the lower edgeof the said groove, the groove preventing the arm from being so worn bythe sleeve as to leave a shoulder against which the upper end of thesleeve would abut if the groove were omitted. This groove 7 is ofsufficient width to provide for differences in motion of the sleeveowing to the shank c beingin one or the other of the holes d.

The shoe B will in practice be bolted to one of the side frames of thecarding-machine (not shown) by a bolt, as b, (see Fig. 2,) it having acollar, b, intermediate its screwthreaded ends, the lower end of thebolt entering the shoe and the frame and having applied to it a nut andwasherfas 10, to secure the said shoe to the frame, the upper end of thebolt b being extended up through a slot in the foot of the stand B,where it has applied to it a suitable nut, 12, and preferably a washer,13, under the nut, the slot permitting the stand B to be adjusted to andfrom the usual doffer. (Not shown.)

The shoe B at one end has a slotted ear, 6*, which receives in it anadjusting screw, 22 provided, as herein shown, with an annular groove toco-operate with the said ear and prevent longitudinal movement of thescrew, yet permit it to be rotated when desired, the

inner threaded end of the said screw entering a threaded hole cut in thefoot of the stand B. By loosening the nut 12 and turning the screw 1)the stand may be closely adjusted without adjusting the shoe, the onesingle bolt 6 serving for two purposes.

Thestand B at its upper end is forked to receive the sleeve-bearing'g,slotted from end to end and provided, as herein shown, with a convexenlargement to enter a cavity of like shape formed in the stand and inthe cap 9', attached to the stand by screws g g, the bearings so maderepresenting one form of what may be called a ball and-socket bearing.

To prevent rotation of the bearing, and also provide means whereby thebearing may be contracted in diameter to compensate for wear of thecomb-shaft and bearing, I have added the screw it, which enters a slotin the said bearing. (See Fig. 2.)

The head of screw h is hollowed out, forming an oil-cup, h, whichcommunicates with the inner surface of the bearing 9 by means of thelongitudinal passage h" in the screw and V h in the bearing g.

1. The comb-shaft, the attached hub having an arm, e, and the rotatingshaft D, combined with the shank e, loosely connected eccentrically tothe head of the shaft D, the said shank having at its outer end thehollow sleeve 6', the said sleeve receiving the arm 6", and the said arm6 rocking the combshaft and holding the shank e in the head of the shaftD, substantially as described.

2. The comb-shaft, the attached hub having an arm, 6 and the rotatingshaft D, having the enlarged head provided with two or more holeslocated at different distances from the center of rotation of the saidhead, in combination with the sleeve having the shank 6, substantiallyas described.

In testimony whereofl have signed my name to this specification in thepresence of two subscribing witnesses.

ELIJ AH VVRIGHT'.

Witnesses:

EBEN A. BALDWIN, GEO. L. WRIGHT.

